Investment offer on construction of cement plant
We propose to construct a cement mini-plant formanufactury of high-quality cement with the efficiency of 25,000 tons per year with use of cement manufacture semi-processed materials – cement clinker, granulated slag and gypsum.
The project envisages an up-to-date innovative manufacture technology enabling to achieve a high quality at low costs.We propose to use a Miocom cement mini-plant for the cement manufacture, making it possible to manufacture up to 10 cement types in the automatic mode, depending on the raw materials, with reduction of the atmospheric harmful discharges by several times.
Note: Ecocement or, as it is called throughout the world, GGBFS, was developed in the 19th century and came into widespread acceptance in the last decades all over the world since its manufacture technology enables to avoid using roasting furnaces, in so doing allowing to decrease the discharge of harmful substances into the atmosphere.
But the main merit of Ecocement is its low prime cost, which is by 2-3 times lower than that of portland cement.For cement manufactury the following materials are used: portland cement clinker, productions of cement plants, blast-furnace granulated slag, productions of metallurgical industrial complexs, gypsum debris from the nearest quarry, as well as calcined soda or a melt of calcined soda for the Ecocement manufacture.
We propose to manufacture the following cement marks for various needs: Portland cement М500 DО: cement clinker – 75%; gypsum debris – 5%.Portland blast-furnace slag cement М500 D20: cement clinker – 65%; granulated slag – 30%; gypsum debris– 5%.Ecocement: granulated slag – 95%; calcined soda – 5%.
Note: In case available cement clinker is not available in the construction region, finished portland cement М500 DO can be used for joint milling thereof with granulated slag (30%) or TPP flue ash for portland cement М500 D20 manufactury.
As an additive for portland cement and portland blast-furnace slag cement manufactury, in the absence of granulated slag, use can be made of TPP flue ash, as well as tripoli powder, foundry flask, fossil meal, calc-sinter, pumice stone, volcanic cinder.As a leachable additive in manufacture of Ecocement, instead of calcined soda, use can be made of sodium silicates, caustic soda, sodium fluoride, potassium carbonate, sodium silicate, alkali production wastes, etc.
For cement production, it is proposed to use a Miocom cement mini-plant with the efficiency from 3 to 100 tons of finished cement per hour. Cement is manufactured at a Miocom cement mini-plant in accordance with the following pattern: The raw materials is delivered to the Miocom cement mini-plant by railway or by motor transport, where they will be unloaded. Then the components are delivered in sequence by a front-end loader into the receiving hopper of the drier cylinder.
After the drier cylinder, the components are by turn delivered to the storage hoppers equipped with batch meters with strain gauges, what will enable achieving accurate batching of one, two or three components depending on the cement mark manufactured by the plant at the moment. The batching is regulated from the control panel. Then the components are delivered into a Miocom special rolling mill, where they are milled at a speed of at least 100 rotations/min. what enables to considerably save electric energy as compared to other mills represented in the market.
Besides, the milling process automation makes it possible to regulate the cement milling fineness directly from the control panel by the operator, depending on the cement mark.After the mill, the finished cement, at random of the customer, is delivered to the storage tanks for shipment into cement trucks or to the line of pre-packaginginto bags or big bags. One of the advantages of a Miocom cement mini-plant is the fact that the line, contrary to the analogs, is equipped with an innovative dust control system enabling to exclude harmful atmospheric discharges practically to zero.
The first step of construction of a Miocom cement mini-plant shall become a search in the region of the available raw materials – blast-furnace granulated slag, cement clinker, alkali, and calculation of the cost of delivery of the raw materials to the plant.Besides, the customer shall determine the optimal fuel – natural gas or diesel fuel. Upon ordering of the equipment the construction of the foundations and, if necessary, of the workshop will be commenced.
The plant with the efficiency of 3 tons per hour can be deployed in a hangar of 100 by 30 meters with the ceiling height of 10 meters.After the foundations and the premises are ready and upon delivery of the equipment, installation of the mini-plant will be commenced by labour of the supplier or, at random, by labour of the customer under the supervision of the supplier (installation supervision). The installation term of the equipment with the efficiency of 3 tons of cement per hour and of the start-up and adjustment works shall be 2 weeks. Miocom Industrial Company provides a guarantee for the equipment for a term of 1 year, for post-guarantee service and life-long technical support. Complete with the equipment, the customer will receive the Technical Specifications for cement manufactury, which he will need for subsequent certification.
Note: Slag-lime concrete is a concretewhich uses Ecocement produced at a Miocom cement mini-plant is used as a replacement of portland cement. The distinctions of preparation of slag-lime concrete from the concrete prepared based on normal portland cement lie in the fact that instead of water a booster is used– an alkaline solution to be made by stirring of a dry alkali with water. This peculiarity restricts the potential sale of Ecocement in bags to the wide range of customers; but instead it can become an excellent solution for enterprises manufacturing concretes and concrete products.